- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
Patent holdings for IPC class C09K 8/92
Total number of patents in this class: 599
10-year publication summary
|
57
|
75
|
43
|
38
|
31
|
19
|
16
|
16
|
14
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14161 |
59 |
| Halliburton Energy Services, Inc. | 21306 |
57 |
| Schlumberger Technology Corporation | 11767 |
55 |
| Schlumberger Canada Limited | 7605 |
45 |
| Schlumberger Technology B.v. | 5299 |
42 |
| Services Petroliers Schlumberger | 6023 |
42 |
| Schlumberger Holdings Limited | 2707 |
26 |
| Prad Research and Development Limited | 2666 |
23 |
| Aramco Services Company | 4182 |
19 |
| Baker Hughes Holdings LLC | 2987 |
18 |
| Flotek Chemistry, LLC | 115 |
11 |
| CARBO Ceramics Inc. | 176 |
9 |
| Innospec Limited | 407 |
7 |
| Research Triangle Institute | 418 |
6 |
| Johnson Matthey Public Limited Company | 1768 |
5 |
| King Fahd University of Petroleum & Minerals | 194 |
5 |
| RTI International | 21 |
5 |
| Baker Hughes, a GE Company, LLC | 2105 |
5 |
| Tracerco Limited | 89 |
5 |
| Baker Hughes Incorporated | 4947 |
4 |
| Other owners | 151 |